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  1. ...velocity between the two colliding objects after impact is zero. In other words, the two objects move with the same velocity Vc (say) after collision . Loss of kinetic energy E = initial kinetic energy (Ei) - final kinetic...

    分類:科學及數學 > 物理學 2016年12月23日

  2. ... few electrons are stopped by the target atoms in a single collision . The Bremsstrahlung spectrum is thus a "continuous spectrum...

    分類:科學及數學 > 物理學 2016年11月05日

  3. ... electron may need to undergo a number of collisions with the material atoms before it escapes from...material. The is the main reason for the variation in kinetic energy of the photo-electrons. I don...

    分類:科學及數學 > 物理學 2016年11月05日

  4. ...electromagnetic radiation. The radiation so emitted is caused by collisions between molecules in the object, which possess thermal kinetic energy energy. By this means, the radiation...

    分類:科學及數學 > 物理學 2016年11月05日

  5. (a) Find the value of m2. m1*v1 = m1*v1' + m2*v2' m2 = m1(v1 - v1')/v2' = m1(v1 - v1')/(4v1/5) = 5m1(v1 - v1')/4v1 (b) Find the relation between v1' and v1. m2 = 5m1(v1/4v1 - v1'/4v1) m2/5m1 = 1/4 - v1'/4v1 v1'/4v1 = 1/4 - m2/5m1 v1'/v1 = 1/16 - m2/20m1 v1' = v1(1/16...

  6. ... is just the same as "impact time", which usually used in the case of collision . 2015-08-03 15:52:46 補充: Q:the force should be negatively related...

  7. ...original motion direction of the ball. 2015-07-04 00:43:07 補充: In 5b, the ball doesn't rebound (because of smooth.... It means there is NO collision at all, as there is NO transfer of momentum...

  8. 1. Where is the diagram? 2. (a) Use momentum conservation 0.08 x 3 = (0.08 + m) x 1.6 where m is the mass of the rubber solve for m gives m = 0.07 kg (b) Force = 0.07 x 1.6/1 N = 0.112 N The force is frictional force. 3. (a) The final momentum...

  9. ... most simple approach is to find the speed of car A after collision using conservation of momentum. But in this case, if the two cars are of the same mass, car A should acquire...

  10. ... the force acts on the block F = 25 N 2. (a) Fall in height of the person = (30 - 2.75) m = 27.25 m Use equation: v^2 = u^2 + 2as...